inside air force one, the obamas and george w. and laura bush along with former first lady clinton, the former president bill and daughter chelsea are flying from an event in rio and linking up with the rest of the club tomorrow. president george h.w. bush who has been in poor health for some time will not be making the trip. together, they are set for an almost 20-hour flight, even though there's only one bed on board. >> air force one is a very intimate setting so that's the place where you can have quieter conversations. once you get to one of these massive events, it's very hard to have real conversations. >> these long flights, believe it or not, can forge friendships. in 1981, president ronald reagan could not attend the funeral of egypt's anwar saddat so he enlisted others to attend instead. the flight was said to be initially awkward and very long, but one notable friendship emerged. evident at ford's funeral more than 25 years later, when jimmy carter eulogized his long-time friend. >> for myself and for our nation, i wan